Trunk / Liftgate: Testing and Inspection

DIAGNOSIS AND TESTING - POWER TAILGATE SYSTEM

The power tailgate system is a complex system containing many components. In order to perform conclusive testing, or receive outputs the power tailgate control module must be checked.
The most reliable, efficient, and accurate means to diagnose the power tailgate system requires the use of a scan tool and the proper Body Diagnostic Procedures manual.
The scan tool can be used to observe current switch status recorded in the power tailgate control module to help the technician diagnose an inoperative switch.
Before any testing of the power tailgate system is attempted, the battery should be fully charged, all power tailgate system inhibitors read and understood .
Following are quick reference diagnostic tables to help when diagnosing and testing the power tailgate system.













DTC LIST





INPUT/OUTPUT MONITORING